feat(scenarios): link scenarios to a default environment

- add optional ManyToOne relation from scenario to environment entity
- expose environmentId in create/update DTOs, service, and MCP tools
- pre-select linked environment in run modals on detail and list pages
- add environment selector to create/edit scenario forms
- show linked environment as a navigable link on scenario detail page

server/src/mcp/mcp.service.ts

@@ -472,13 +472,18 @@ export class McpService {
             .string()
             .optional()
             .describe("Optional markdown description"),
+          environmentId: z
+            .uuid()
+            .optional()
+            .describe("Optional linked environment ID"),
         },
       },
-      async ({ name, description }) => {
+      async ({ name, description, environmentId }) => {
         try {
           const scenario = await this.scenarioService.create({
             name,
             description,
+            environmentId,
           });
           return {
             content: [
@@ -505,13 +510,19 @@ export class McpService {
             .string()
             .optional()
             .describe("New markdown description"),
+          environmentId: z
+            .uuid()
+            .nullable()
+            .optional()
+            .describe("Linked environment ID (null to unlink)"),
         },
       },
-      async ({ id, name, description }) => {
+      async ({ id, name, description, environmentId }) => {
         try {
           const scenario = await this.scenarioService.update(id, {
             name,
             description,
+            environmentId,
           });
           return {
             content: [

server/src/scenario/dto/create-scenario.dto.ts

@@ -1,5 +1,5 @@
 import { ApiProperty, ApiPropertyOptional } from "@nestjs/swagger";
-import { IsNotEmpty, IsOptional, IsString } from "class-validator";
+import { IsNotEmpty, IsOptional, IsString, IsUUID } from "class-validator";
 
 export class CreateScenarioDto {
   @ApiProperty({ example: "Login and verify cabinet" })
@@ -11,4 +11,9 @@ export class CreateScenarioDto {
   @IsOptional()
   @IsString()
   description?: string;
+
+  @ApiPropertyOptional({ description: "Optional linked environment ID" })
+  @IsOptional()
+  @IsUUID()
+  environmentId?: string;
 }

server/src/scenario/dto/update-scenario.dto.ts

@@ -1,5 +1,5 @@
 import { ApiPropertyOptional } from "@nestjs/swagger";
-import { IsNotEmpty, IsOptional, IsString } from "class-validator";
+import { IsNotEmpty, IsOptional, IsString, IsUUID } from "class-validator";
 
 export class UpdateScenarioDto {
   @ApiPropertyOptional({ example: "Updated scenario name" })
@@ -12,4 +12,9 @@ export class UpdateScenarioDto {
   @IsOptional()
   @IsString()
   description?: string;
+
+  @ApiPropertyOptional({ description: "Linked environment ID (null to unlink)" })
+  @IsOptional()
+  @IsUUID()
+  environmentId?: string | null;
 }

server/src/scenario/scenario.entity.ts

@@ -2,10 +2,13 @@ import {
   Column,
   CreateDateColumn,
   Entity,
+  JoinColumn,
+  ManyToOne,
   OneToMany,
   PrimaryGeneratedColumn,
   UpdateDateColumn,
 } from "typeorm";
+import { EnvironmentEntity } from "../environment/environment.entity";
 import { ScenarioCredentialEntity } from "./scenario-credential.entity";
 import { ScenarioStepEntity } from "./scenario-step.entity";
 
@@ -20,6 +23,13 @@ export class ScenarioEntity {
   @Column("text", { nullable: true })
   description: string | null;
 
+  @Column({ nullable: true, type: "text" })
+  environmentId: string | null;
+
+  @ManyToOne(() => EnvironmentEntity, { nullable: true, onDelete: "SET NULL", eager: false })
+  @JoinColumn({ name: "environmentId" })
+  environment: EnvironmentEntity | null;
+
   @OneToMany(() => ScenarioStepEntity, (step) => step.scenario, {
     cascade: true,
     eager: false,

server/src/scenario/scenario.service.ts

@@ -77,6 +77,7 @@ export class ScenarioService {
         "steps",
         "scenarioCredentials",
         "scenarioCredentials.credential",
+        "environment",
       ],
       order: { steps: { order: "ASC" } },
     });